On Mon, Oct 19, 2020 at 12:02 AM Joseph Heled <[email protected]> wrote:

> But someone starting work in that area can take the old frame for another
> spin. They would learn a lot, even if they don't improve anything.
>

Yes! I can confirm that.


> They can start with the "relatively" low hanging fruit of the race net.
> (even though it is not as low hanging as some may think.)
> Oystein can add more on that.
>

Oh, yes! For many years I had the impression that the race neural network
was close to perfect, and didn't care much to look into it. I now realize
that there are many positions that are actually misplayed. So, I'm
currently trying to find better methods for evaluating race position. It is
possible to calculate some positions exactly to the bitter end with simple
dynamic programming, however that is way too slow, it is also possible to
estimate winning probabilities using the Central Limit Theorem for Renewal
Processes. That is superfast, however worse than the current neural
network, I guess. The problem is to find the sweet spot between what is
feasible from a time (and memory) consuming point of view and the precision
of the evaluation.

I'm in the phase of setting up a more detailed simulation on these
different methods, such that I do have some numbers for comparison.

-Øystein

Reply via email to